So are you using the new usb tuners in addition to the S350?
If you can replicate the recording schedule personally I would set up the channels fresh and get them ordered/grouped for ease of use.
As you know a first time install of freesat tuners obtains loads of channels, some don't work some are duplicates etc etc. If you have dvb-s2 HD tuners a full transponder scan also misses out a lot of the channels and you need to add them manually.
I've yet to try this method but if it works it should have you up and running fairly quickly **I'm not sure about scheduled recordings so do this at your own risk**
I would download guidetool, install and open it with media center also open. The channels will all be displayed including encrypted ones that you can't receive anyway via freesat. Then click on the 'tick' icon and switch to view only those channels that are currently in media center. This will contain a good few hundred channels and include all the regional variations of ITV, C4 etc etc. Untick them all and click 'refresh' on the guidetool task bar. This should hide all the channels from your current media center setup, working ones, duplicate channels and non working channels. What you're doing to do is essentially hide all channels from your media center and then scan for only that are working and that you want to have.
Next thing is to grab the up to date transponder listing from here
http://en.kingofsat.net/freqs.php?&pos= ... ltre=Clear
Go into your settings and do a single transponder scan for each group of channels you require as shown on that page. For example the first 'block' on that page contain Channel 4 and Film 4 so do a single scan on the frequency at the top of the section using 10714 - 22000 - H (being 'Horizontal') - as the frequency
This will bring in that group of channels to your media center that should all be working. Check that they are working ok and then click refresh on the guidetool programme, they should appear in guidetool with 'ticks' in the left hand column (you may have to switch view by clicking on the tick icon in the panel) but anyway it should only display those channels you have just scanned for and received.
If that works then go through that transponder list section by section scanning only those frequencies that contain channels you want to receive. Some frequencies will contain channels you don't want, don't bother scanning them. So 30 mins later you should have scanned all the transponders that contain the channels you want. Refresh guidetool and untick any further channels you wish to remove. You should now have a bunch of working channels. If you wish to renumber them you can in guidetool by right clicking and renumbering, that'll sort them all out into a nice list
